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Essay by   •  June 13, 2011  •  384 Words (2 Pages)  •  845 Views

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AIM: to determine which liquid will preserve the apple best.

HYPOTHESIS: the apple will be preserved the best by the vinegar.

EQUIPMENT:

o 4 pink lady apples

o 4 sealed containers

o 500mL of white vinegar (Cornwells)

o 500mL of mentholated spirits

o 5oomL of tap water

o Knife

o Measuring jug

METHOD:

1. Peal 4 pink lady apples with a knife

2. Place each apple in a sealed container

3. Measure 500mL of vinegar in a measuring jug and poor it in to one sealed container

4. Repeat this with the mentholated spirits and water

5. Record results

TIMELINE:

Wednesday February 13th start experiment

Thursday February 14th Ð'- Wednesday Feb 20th record results and write in logbook

Feb 16th Saturday Ð'- complete risk assessment

Wednesday 20th February start experiment again (2nd time)

Thursday 21st February -Wednesday 27th February Ð'- record results in logbook

Sat 23rd Ð'- Sunday 24th February- complete introduction

Wednesday 27th February start experiment again

Thursday 28th February Ð'- Wednesday 5th march Ð'- record results and write in logbook

8th Ð'- 9th march Ð'- write the discussion and conclusion

EXPERIMENT DESIGN:

Control: container with no liquid and an apple.

This control has exactly the same conditions of the 3 containers with different liquids but allow the apple to preserve its self with nothing to protect it.

Dependent variable: darkness over

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